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Globe at Night Sets Dates for 2014 Campaigns

Monday, November 25, 2013 - 09:25

The Globe at Night program is an international citizen-science campaign to raise public awareness of the impact of light pollution by inviting citizen scientists to measure their night-sky brightness and submit their observations from a computer or smart phone. Light pollution threatens not only our "right to starlight," but also can adversely affect energy consumption, wildlife, and health. Nearly 100,000 measurements have been contributed from people in 115 countries during the campaigns over the last 8 years, making Globe at Night the most successful light-pollution-awareness program to date.

For 2014 Globe at Night offers four ways to measure night-sky brightness: the traditional method of matching what you see in a constellation with star charts; the use of a handheld digital device called a Sky Quality Meter; the use of the Loss of the Night app on Android phones, which asks you to find certain stars as a measure of star visibility; or the use of the Dark Sky Meter app on iPhone 4s and iPhone 5/5s/5c, which uses the phone's camera to measure night-sky brightness.

Explore the last 8 years of data in our interactive map, or see how your city did with our map app. The Globe at Night website is easy to use, comprehensive, and holds an abundance of background information. The database is usable for comparisons with a variety of other databases, such as how light pollution affects the foraging habits of bats.

For 2014 we will be collecting observations during all 12 months of the year:

  • January 20-29
  • February 19-28
  • March 21-30
  • April 20-29
  • May 19-28
  • June 17-26
  • July 16-25
  • August 15-24
  • September 15-24
  • October 14-23
  • November 12-21
  • December 11-20

We look forward to your participation in the campaign! Visit for more information.

Constance E. Walker
NOAO, International Dark-Sky Assoc. BOD, Astronomical Society of the Pacific BOD